CA2138897A1 - Thermochromic Color-Memory Composition - Google Patents

Thermochromic Color-Memory Composition

Info

Publication number
CA2138897A1
CA2138897A1 CA2138897A CA2138897A CA2138897A1 CA 2138897 A1 CA2138897 A1 CA 2138897A1 CA 2138897 A CA2138897 A CA 2138897A CA 2138897 A CA2138897 A CA 2138897A CA 2138897 A1 CA2138897 A1 CA 2138897A1
Authority
CA
Canada
Prior art keywords
color
component
thermochromic
electron
memory
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2138897A
Other languages
French (fr)
Other versions
CA2138897C (en
Inventor
Akio Nakashima
Yutaka Shibahashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pilot Ink Co Ltd
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP34775793A external-priority patent/JP3396787B2/en
Priority claimed from JP20144594A external-priority patent/JP3306609B2/en
Application filed by Individual filed Critical Individual
Publication of CA2138897A1 publication Critical patent/CA2138897A1/en
Application granted granted Critical
Publication of CA2138897C publication Critical patent/CA2138897C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/50—Sympathetic, colour changing or similar inks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/30—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using chemical colour formers
    • B41M5/305—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using chemical colour formers with reversible electron-donor electron-acceptor compositions
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/26—Thermosensitive paints
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/913—Material designed to be responsive to temperature, light, moisture
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2984—Microcapsule with fluid core [includes liposome]

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)

Abstract

A thermochromic color-memory compositions exhibiting high color contrast between high color density in a colored state and sufficiently low color density in a decolored state with high freedom of selection of the reaction medium, and highly useful as a thermochromic material. The thermochromic color-memory composition comprises a homogeneous solubilized mixture of essential three components of (a) an electron-donating color-developing organic compound, (b) an electron-accepting compound, and (c) a reaction medium for controlling a color reaction of the component (a) with the component (b); the component (c) being selected from aliphatic ketones of 10 to 22 total carbons and aryl alkyl ketones of 12 to 24 total carbons; and the composition changing the color thereof with a large hysteresis width (AH) of from 8°C to 80°C.
CA002138897A 1993-12-24 1994-12-22 Thermochromic color-memory composition Expired - Fee Related CA2138897C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP34775793A JP3396787B2 (en) 1993-12-24 1993-12-24 Thermochromic color memory microcapsule pigment
JP5-347757 1993-12-24
JP20144594A JP3306609B2 (en) 1994-08-02 1994-08-02 Thermochromic color memory composition
JP6-201445 1994-08-02

Publications (2)

Publication Number Publication Date
CA2138897A1 true CA2138897A1 (en) 1995-06-25
CA2138897C CA2138897C (en) 1998-04-21

Family

ID=26512793

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002138897A Expired - Fee Related CA2138897C (en) 1993-12-24 1994-12-22 Thermochromic color-memory composition

Country Status (4)

Country Link
US (1) US5558699A (en)
EP (1) EP0665119B1 (en)
CA (1) CA2138897C (en)
DE (1) DE69407154T2 (en)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3845128B2 (en) * 1995-06-07 2006-11-15 パイロットインキ株式会社 Temperature-dependent color memory resin composition and laminate using the same
JPH09176628A (en) * 1995-12-27 1997-07-08 Pilot Ink Co Ltd Method for improving light resistance during color developing of reversible thermochromic composition
JPH09208850A (en) * 1996-02-06 1997-08-12 Pilot Ink Co Ltd Method for improving light resistance of reversibly thermochromic composition in darkened state
DE69820840T2 (en) * 1997-10-31 2004-12-30 The Pilot Ink Co., Ltd., Nagoya Color change material
AU5948499A (en) 1998-03-05 1999-11-29 Victor Spivak Optical-acoustic imaging device
JP2001041830A (en) * 1999-02-05 2001-02-16 Toshiba Tec Corp Heat sensitive material and temperature managing member
CA2318700A1 (en) 1999-09-17 2001-03-17 Katsuyuki Fujita Thermochromic microencapsulated pigments
CA2324637A1 (en) 1999-10-29 2001-04-29 Nobuaki Matsunami Solid having reversibly invisible/visible thermochromic construction enclosed therein
US6461417B1 (en) * 2000-08-24 2002-10-08 Xerox Corporation Ink compositions
EP1221500A1 (en) * 2001-01-04 2002-07-10 The Pilot Ink Co., Ltd. Thermochromic acrylic synthetic fiber, its processed article, and process for producing thermochromic acrylic synthetic fiber
US6444313B1 (en) 2001-01-05 2002-09-03 The Pilot Ink Co., Ltd. Thermochromic acrylic synthetic fiber, its processed article, and process for producing thermochromic acrylic synthetic fiber
JP2002369978A (en) 2001-04-13 2002-12-24 Pilot Ink Co Ltd Water discolored printed matter and water discolored toy using the same
JP3910877B2 (en) 2001-11-22 2007-04-25 パイロットインキ株式会社 Temperature-sensitive discolorable composite fiber
US7245789B2 (en) 2002-10-07 2007-07-17 Vascular Imaging Corporation Systems and methods for minimally-invasive optical-acoustic imaging
JP4219776B2 (en) * 2003-05-16 2009-02-04 パイロットインキ株式会社 Temperature-sensitive color-change color memory composition and temperature-sensitive color-change color memory microcapsule pigment containing the same
US7538070B2 (en) 2005-06-07 2009-05-26 Xerox Corporation Thermochromic recording medium
TWI266294B (en) * 2005-10-21 2006-11-11 Daxon Technology Inc Reversible thermochromic optical disc
US7599588B2 (en) 2005-11-22 2009-10-06 Vascular Imaging Corporation Optical imaging probe connector
EP2356412B1 (en) 2008-10-02 2012-08-15 Vascular Imaging Corporation Optical ultrasound receiver
EP2431444B1 (en) * 2009-05-12 2019-11-13 The Pilot Ink Co., Ltd. Thermochromic color-memory composition, and thermochromic color-memory microcapsule pigment having the composition encapsulated therein
EP2500778B1 (en) * 2009-11-13 2017-10-25 The Pilot Ink Co., Ltd. Thermochromic color-memorization type toner, cartridge including same housed therein, image formation apparatus, cartridge set, and image formation apparatus set
CA2756009C (en) * 2011-10-18 2013-10-29 Benjamin R. Harvey Multi-seasonal camouflage pattern fabrics and coatings for hunting
EP2772523B1 (en) * 2011-10-25 2018-11-28 Kabushiki Kaisha Pilot Corporation Reversibly thermochromic composition
US8709973B2 (en) 2011-12-31 2014-04-29 Sanford, L.P. Irreversible thermochromic ink compositions
US8652996B2 (en) 2011-12-31 2014-02-18 Sanford, L.P. Irreversible thermochromic pigment capsules
US8664156B2 (en) 2011-12-31 2014-03-04 Sanford, L.P. Irreversible thermochromic ink compositions
US8865621B2 (en) * 2012-08-06 2014-10-21 Sanford, L.P. Irreversible color changing ink compositions
JP6227892B2 (en) * 2013-04-30 2017-11-08 株式会社パイロットコーポレーション Solid cursive
US10955222B2 (en) * 2014-06-03 2021-03-23 Gregory DeMille Garments and equipment having temperature-induced locking camouflage patterns
US9342029B1 (en) * 2015-09-29 2016-05-17 Kabushiki Kaisha Toshiba Image forming apparatus that forms an image with a decolorable material and a non-decolorable material and method for forming the image
DE102016214617B4 (en) 2016-08-05 2022-06-23 Stabilo International Gmbh Erasable ink, its use and ink cartridge filled with the erasable ink
DE202016004825U1 (en) 2016-08-05 2017-11-07 Stabilo International Gmbh Erasable ink and its use
DE202016005058U1 (en) 2016-08-17 2017-11-19 Stabilo International Gmbh Erasable ink and its use
JP2018205222A (en) * 2017-06-08 2018-12-27 株式会社日立製作所 Temperature evaluation system and article management system using the same
US12078550B2 (en) * 2019-04-01 2024-09-03 Chromatic Technologies, Inc. Thermochromic temperature sensor
DE102020005549A1 (en) 2020-09-10 2022-03-10 Stabilo International Gmbh Stlft and container of such a pen
DE202020003851U1 (en) 2020-09-10 2021-12-14 Stabilo International Gmbh Pen and holder of such a pen
DE102020008137A1 (en) 2020-09-10 2022-05-05 Stabilo International Gmbh Pen and holder of such a pen
KR20230013688A (en) * 2021-07-16 2023-01-27 삼성디스플레이 주식회사 Display device and manufacturing method for the same

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1592148A (en) * 1924-03-27 1926-07-13 Munn James Wells Card-inscribing device
US4028118A (en) * 1972-05-30 1977-06-07 Pilot Ink Co., Ltd. Thermochromic materials
US4176273A (en) * 1976-10-19 1979-11-27 Olympus Optical Company Limited Light and heat writing pen for photosensitive material
JPS60264285A (en) * 1984-06-13 1985-12-27 Pilot Ink Co Ltd Reversible thermal recording composition
JPS619488A (en) * 1984-06-26 1986-01-17 Pilot Ink Co Ltd Preversible heat-sensitive, temperature-indicating composition
EP0201491A1 (en) * 1984-11-16 1986-11-20 Kimura Industries Usa Heat activated indica on textiles
US4717710A (en) * 1985-01-17 1988-01-05 Matsui Shikiso Chemical Co. Ltd. Thermochromic composition
JPS63149015U (en) * 1987-03-23 1988-09-30
GB2205255B (en) * 1987-04-29 1991-07-24 Pilot Ink Co Ltd Color changing toy
US4917643A (en) * 1987-06-26 1990-04-17 Mattel, Inc. Toy vehicle with thermochromic material
JPH041848Y2 (en) * 1987-11-20 1992-01-22
US4895827A (en) * 1987-12-04 1990-01-23 Appleton Papers Inc. Thermally-responsive record material
US4820683A (en) * 1987-12-04 1989-04-11 Appleton Papers Inc. Thermally-responsive record material
JPH0355818U (en) * 1989-10-04 1991-05-29

Also Published As

Publication number Publication date
EP0665119A1 (en) 1995-08-02
DE69407154T2 (en) 1998-03-26
US5558699A (en) 1996-09-24
DE69407154D1 (en) 1998-01-15
EP0665119B1 (en) 1997-12-03
CA2138897C (en) 1998-04-21

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